公开(公告)号：US12112993B2

公开(公告)日：2024-10-08

申请号：US17289259

申请日：2019-08-30

Applicant: A.L.M.T. Corp.

Inventor： Ryota Matsugi ,  Isao Iwayama ,  Chieko Tanaka ,  Hideaki Morigami

IPC: H01L23/373 ,  B23K1/00 ,  B23K35/32 ,  B23K101/40 ,  B23K103/00 ,  B23K103/16

CPC classification number: H01L23/3732 ,  B23K1/0016 ,  B23K35/325 ,  H01L23/3736 ,  B23K2101/40 ,  B23K2103/172 ,  B23K2103/56

Abstract: A heat radiation member excellent in electrical insulation and better in thermal conduction is provided. The heat radiation member includes a substrate composed of a composite material containing diamond and a metallic phase, an insulating plate provided on at least a part of front and rear surfaces of the substrate and composed of an aluminum nitride, and a single bonding layer interposed between the substrate and the insulating plate, the heat radiation member having thermal conductivity not lower than 400 W/m·K.

公开(公告)号：US11668009B2

公开(公告)日：2023-06-06

申请号：US16969238

申请日：2019-01-30

Applicant: Sumitomo Electric Industries, Ltd. ,  A.L.M.T. Corp.

Inventor： Kengo Goto ,  Tomoaki Ikeda ,  Akihisa Hosoe ,  Masanori Sugisawa ,  Fukuto Ishikawa ,  Hideaki Morigami

IPC: C23C18/16 ,  C23C18/18 ,  C23C26/00 ,  C23C18/50 ,  C22C26/00 ,  B32B15/04 ,  H01L23/373 ,  C22C1/04 ,  C22C1/05 ,  C22C5/06 ,  C23C18/32 ,  H01L21/48 ,  B32B19/00 ,  B32B15/16 ,  B32B19/04 ,  B22F7/02

CPC classification number: C23C18/1651 ,  B32B15/04 ,  B32B15/043 ,  B32B15/16 ,  B32B19/00 ,  B32B19/041 ,  C22C1/0466 ,  C22C1/05 ,  C22C5/06 ,  C22C26/00 ,  C23C18/1637 ,  C23C18/1803 ,  C23C18/1827 ,  C23C18/1844 ,  C23C18/1879 ,  C23C18/32 ,  C23C18/50 ,  H01L21/4871 ,  H01L23/3732 ,  H01L23/3736 ,  B22F7/02 ,  B22F2998/10 ,  B22F2999/00 ,  B32B2255/06 ,  B32B2255/205 ,  B32B2255/28 ,  Y10T428/12493 ,  Y10T428/12535 ,  Y10T428/12625 ,  Y10T428/12868 ,  Y10T428/12875 ,  Y10T428/12944 ,  Y10T428/12993 ,  B22F2999/00 ,  B22F7/02 ,  C22C1/05 ,  C22C26/00 ,  C22C1/0466 ,  B22F2998/10 ,  B22F7/02 ,  B22F2003/247 ,  B22F2003/244 ,  B22F2003/242

Abstract: A composite member includes: a substrate formed of a composite material containing a plurality of diamond grains and a metal phase; and a coating layer made of metal. The surface of the substrate includes a surface of the metal phase, and a protrusion formed of a part of at least one diamond grain of the diamond grains and protruding from the surface of the metal phase. In a plan view, the coating layer includes a metal coating portion, and a grain coating portion. A ratio of a thickness of the grain coating portion to a thickness of the metal coating portion is equal to or less than 0.80. The coating layer has a surface roughness as an arithmetic mean roughness Ra of less than 2.0 μm.